Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Element
|
a class of substances that can't be separated into simpler substances by chemical means
|
|
|
Periodic Table
|
illustrates the periodic system where chemical elements are shown in related groups arranged by atomic weights and now by atomic number
|
|
|
Atomic Symbol
|
designates each element with a symbol
|
|
|
Atomic Nucleus
|
protons and neutrons are bound together in the center
|
|
|
Electron
|
particle that constituent of matter
component ouside the nucleus of an atom |
|
|
Nucleon
|
proton or neutron, when considered as a component of a nucleus
|
|
|
Proton
|
positively charged particle that is a constituent of all atomic nuclei
|
|
|
Atomic Number
|
number of positive charges or protons in the nucleus of an atom of a given element
|
|
|
Neutron
|
particle having no charge, mass slightly greater than a proton
|
|
|
Shell
|
any of 7 energy levels on which an electron may exist within an atom
|
